The TORCH time-of-flight detector

N. Harnew; R. Gao; T. Hadavizadeh; T.H. Hancock; J.C. Smallwood; N.H. Brook; S. Bhasin; D. Cussans; J. Rademacker; R. Forty; C. Frei; T. Gys; D. Piedigrossi; M.W.U. van Dijk; E.P.M. Gabriel; T. Conneely; J. Milnes; T. Blake; M.F. Cicala; T. Gershon; T. Jones; M. Kreps

doi:10.1016/j.nima.2022.167991

The TORCH time-of-flight detector

N. Harnew
, R. Gao
, T. Hadavizadeh
, T.H. Hancock
, J.C. Smallwood
, N.H. Brook
, S. Bhasin
, D. Cussans
, J. Rademacker
, R. Forty
, C. Frei
, T. Gys
, D. Piedigrossi
, M.W.U. van Dijk
, E.P.M. Gabriel
, T. Conneely
, J. Milnes
, T. Blake
, M.F. Cicala
, T. Gershon

T. Jones, M. Kreps

Faculty of Science

University of Oxford
University of Bristol
CERN
CERN
University of Edinburgh
Photek Ltd.
University of Warwick

Research output: Contribution to journal › Article › peer-review

3 Citations (SciVal)

Abstract

TORCH is a large-area time-of-flight (ToF) detector, proposed for the Upgrade-II of the LHCb experiment. It will provide charged hadron identification over a 2–20 GeV/c momentum range, given a 9.5 m flight distance from the LHC interaction point. To achieve this level of performance, a 15 ps timing resolution per track is required. A TORCH prototype module having a 1250 x 660 x 10 mm3 fused-silica radiator plate and equipped with two MCP-PMTs has been tested in a 8 GeV/c CERN test-beam. Single-photon time resolutions of between 70–100 ps have been achieved, dependent on the beam position in the radiator. The measured photon yields agree with expectations.

Original language	English
Pages (from-to)	167991
Number of pages	3
Journal	Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment
Volume	1048
Early online date	26 Dec 2022
DOIs	https://doi.org/10.1016/j.nima.2022.167991
Publication status	Published - 1 Mar 2023

Funding

The support is acknowledged of the Science and Technology Research Council, UK, grant number ST/P002692/1, the European Research Council through an FP7 Advanced Grant (ERC-2011-AdG299175-TORCH) and the Royal Society, UK.

Keywords

Time-of-flight
Cherenkov light
Photon detectors
Particle identification

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10.1016/j.nima.2022.167991Licence: CC BY

https://linkinghub.elsevier.com/retrieve/pii/S0168900222012839

Cite this

Harnew, N., Gao, R., Hadavizadeh, T., Hancock, T. H., Smallwood, J. C., Brook, N. H., Bhasin, S., Cussans, D., Rademacker, J., Forty, R., Frei, C., Gys, T., Piedigrossi, D., van Dijk, M. W. U., Gabriel, E. P. M., Conneely, T., Milnes, J., Blake, T., Cicala, M. F., ... Kreps, M. (2023). The TORCH time-of-flight detector. Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, 1048, 167991. https://doi.org/10.1016/j.nima.2022.167991

Harnew, N, Gao, R, Hadavizadeh, T, Hancock, TH, Smallwood, JC, Brook, NH, Bhasin, S, Cussans, D, Rademacker, J, Forty, R, Frei, C, Gys, T, Piedigrossi, D, van Dijk, MWU, Gabriel, EPM, Conneely, T, Milnes, J, Blake, T, Cicala, MF, Gershon, T, Jones, T & Kreps, M 2023, 'The TORCH time-of-flight detector', Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, vol. 1048, pp. 167991. https://doi.org/10.1016/j.nima.2022.167991

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abstract = "TORCH is a large-area time-of-flight (ToF) detector, proposed for the Upgrade-II of the LHCb experiment. It will provide charged hadron identification over a 2–20 GeV/c momentum range, given a 9.5 m flight distance from the LHC interaction point. To achieve this level of performance, a 15 ps timing resolution per track is required. A TORCH prototype module having a 1250 x 660 x 10 mm3 fused-silica radiator plate and equipped with two MCP-PMTs has been tested in a 8 GeV/c CERN test-beam. Single-photon time resolutions of between 70–100 ps have been achieved, dependent on the beam position in the radiator. The measured photon yields agree with expectations.",

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AU - Harnew, N.

AU - Gao, R.

AU - Hadavizadeh, T.

AU - Hancock, T.H.

AU - Smallwood, J.C.

AU - Brook, N.H.

AU - Bhasin, S.

AU - Cussans, D.

AU - Rademacker, J.

AU - Forty, R.

AU - Frei, C.

AU - Gys, T.

AU - Piedigrossi, D.

AU - van Dijk, M.W.U.

AU - Gabriel, E.P.M.

AU - Conneely, T.

AU - Milnes, J.

AU - Blake, T.

AU - Cicala, M.F.

AU - Gershon, T.

AU - Jones, T.

AU - Kreps, M.

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N2 - TORCH is a large-area time-of-flight (ToF) detector, proposed for the Upgrade-II of the LHCb experiment. It will provide charged hadron identification over a 2–20 GeV/c momentum range, given a 9.5 m flight distance from the LHC interaction point. To achieve this level of performance, a 15 ps timing resolution per track is required. A TORCH prototype module having a 1250 x 660 x 10 mm3 fused-silica radiator plate and equipped with two MCP-PMTs has been tested in a 8 GeV/c CERN test-beam. Single-photon time resolutions of between 70–100 ps have been achieved, dependent on the beam position in the radiator. The measured photon yields agree with expectations.

AB - TORCH is a large-area time-of-flight (ToF) detector, proposed for the Upgrade-II of the LHCb experiment. It will provide charged hadron identification over a 2–20 GeV/c momentum range, given a 9.5 m flight distance from the LHC interaction point. To achieve this level of performance, a 15 ps timing resolution per track is required. A TORCH prototype module having a 1250 x 660 x 10 mm3 fused-silica radiator plate and equipped with two MCP-PMTs has been tested in a 8 GeV/c CERN test-beam. Single-photon time resolutions of between 70–100 ps have been achieved, dependent on the beam position in the radiator. The measured photon yields agree with expectations.

KW - Time-of-flight

KW - Cherenkov light

KW - Photon detectors

KW - Particle identification

U2 - 10.1016/j.nima.2022.167991

DO - 10.1016/j.nima.2022.167991

M3 - Article

SN - 0168-9002

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JO - Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment

JF - Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment

ER -

The TORCH time-of-flight detector

Abstract

Funding

Keywords

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